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Sky-Tonight.com/Double stars/STF 855
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Observation Settings

Or select it on the map:
This Earth map lets you select the observer’s location used to calculate the bearing and elevation of celestial objects. The selected point determines how the sky, rise and set times, and object positions are shown.
Your location: Santa Clara, United States
Timezone:
Latitude:
37.3541
Longitude:
-121.955

STF 855 Position and Visibility Tonight

06090+0230

Where is STF 855 right now?

STF 855 is located in the constellation Orion. It is currently below the horizon and is not visible from your location.
Open the interactive guide to STF 855’s position and path tonight

STF 855 visibility on 2026-10-24

STF 855 Visible from before midnight until sunrise

STF 855 rise and set timetable

TimeElevation
Moonrise, 88% illuminated 14:51-50°
Astronomical observing session begins17:47-35°
STF 855 rise20:58
STF 855 transit03:0555°
Moonset03:4754°
Astronomical observing session ends03:5753°
Twilight end (−12°)04:2750°
Civil sunrise04:5847°
Sunrise05:2542°
STF 855 set09:11

Track STF 855 position throughout the night

← 24 October 2026 →

Elevation (degrees)
Time
Altitude
Azimuth
Shift the map to change the time and observe STF 855 changing position in the night sky.

Star system description: STF 855

A double or multiple star system in Orion.

Pair AB has a measured separation of 29.1″; a telescope may be needed to split it.

The diagram uses the latest WDS measurements; north is up and east is right. Measurements may be from different years. Unconnected groups are arranged separately; close pairs may merge, and pairs without reliable geometry are omitted.

Technical details: STF 855

PropertyValue
System identifierWDS 06090+0230
Bayer / Flamsteed designation
ConstellationOrion
System typemultiple star system
Right ascension (RA)06h 08m 57s"
Declination (Dec)02° 29' 58s
ComponentAB
Primary magnitude5.68
Secondary magnitude6.68
Separation (arcseconds)29.1″
Position angle115°
Discovery year1824
Last observed2019
Spectral type (primary/secondary)A3Vn+A0V
Number of observations64

3 components are identified in WDS; this is not a count of resolved stars.

Components of STF 855

Each row is a separate WDS component pair. Measurements may come from different years.

ComponentPrimary magnitudeSecondary magnitudeSeparation (arcseconds)Position angleLast observed
AB5.686.6829.1″115°2019
AC5.689.68117.6″106°2015
BC6.689.6888.8″104°2015

Notes

  • T: Matching parallax and similar proper motion indicate a physical pair.

Data source: Washington Double Star (WDS) Catalog. Maintained by the U.S. Naval Observatory; thanks to the WDS team.

Finder Chart for STF 855

Field of view 5.0°

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View on Sky Map

STF 855 Passage Through Night

Double-click to unlock the map.

Current position of STF 855

Time11:25
Latitude37.3541
Longitude-121.955
Elevation-25°
Azimuth295°
Here you can see the current position of STF 855 on the map, as well as its positions for rise and set. This tool lets you track its movement throughout the night with accurate, up-to-date information.

When Is STF 855 Visible Throughout the Year?

STF 855 will remain visible until April 23, when it moves too close to the Sun and temporarily disappears from the night sky. Time
DateSat, 24 October 2026
Astronomical observing session begins17:43
Astronomical observing session ends03:50
Astronomical observing duration10h 8m
Rise20:58
Set09:11
Elevation at transit55°
Transit time03:05
Equatorial coordinatesRA: 06h 08m 57s", Dec: 02° 29' 58s
Magnitude6
ConstellationOrion
The graph illustrates the annual visibility pattern of STF 855, including its daily appearances and transit times. The vertical axis shows the hours of the day and the horizontal axis spans the year. The reddish area marks when the object is above the horizon, while the white line marks its daily transit.
You can also see when STF 855 is visible throughout the year in a table with exact rise, transit, and set times for each date.

Astrometric and Physical Parameters of STF 855

Coordinates and Visibility

Right Ascension06h 08m 58s
Declination02° 29′ 59″
Magnitude5.68
ConstellationOrion
Elevation-24.9°
Azimuth294.5°